Abstract: There were 11 344 microsatellites(SSRs)ranged from 1 to 6 bp detected by analyzing the DNA sequences covering about 10% of genome Camellia. Among these SSRs, dinucleotide repeats were most abundant(27.1%). For the composition of microsatellites, A/T repeats were the most frequent motifs in mononucleotide repeats, and AT/TA, AG/TC repeats were the most in dinucleotide repeats, while(AAN)n,(AAAN)n and(AAAAN)n repeats were dominant in tri-, tetra- and pentanucleotide repeats, respectively. All the dominant repeat motifs for different type of SSRs were abundant in nucleotides A and T. In Camellia genome, microsatellites longer than 20bp accounted for about 11.7% of the detected SSRs. Repeats, repeat motif lengths were found negatively correlated with the variation rate except mononucleotide repeats, thus, the shorter repeats would have faster substitution rate.